I think my W7 OS is hosed for a lack of a better way to describe the situation.Here's the background:*x201 shipped with W764 Pro*I upgraded to W764 Ultimate. Have SP1 installed.*Running BitLocker TPM+PIN*Paritioned HDD into 120GB for the OS. Other paritions are1) Lenovo's System Drive2) Lenovo Recovery Partitionand 3) "Data" partition I created.

I want a solid working W7 OS back.

What's best way to proceed?1) Run Rescue and Recovery and do the upgrade again? Seems like a lot of work but at least will be back to factory state. 2) Do a repair installation using the W764 DVD? I understand I would have to get a W764 Ultimate SP1 DVD or uninstall SP1 and use the W764 Ultimate DVD I have.

I want to keep all paritions listed above. Maybe use this as an opportunity to expand the OS parition a little but its not absolutely necessary.